Thanx for your reply I have tried all of the instructions listed in the given site but they wont work. I think problem is out of the iptables. Waiting for reply M Bilal Ahmad -----Original Message----- From: Kinkie [mailto:kinkie-squid@xxxxxxxxx] Sent: Wednesday, February 22, 2006 4:23 PM To: Muhammad Bilal Ahmad Cc: 'Steve Brown'; squid-users@xxxxxxxxxxxxxxx Subject: Re: Sos transparent proxy problem On Wed, 2006-02-22 at 15:30 +0500, Muhammad Bilal Ahmad wrote: > Dear all [...] > touch /var/lock/subsys/local > > ulimit -n 8192 > > echo "1" > /proc/sys/net/ipv4/ip_forward > > iptables -t nat -A POSTROUTING -p tcp -j MASQUERADE > > iptables -t nat -A PREROUTING -p tcp --dport 80 -i eth0 -j DNAT --to > 192.168.0.29:3128 > > iptables -t nat -A POSTROUTING -p udp -j MASQUERADE [...] Your iptables rules are wrong, especially the DNAT one. Please check the FAQ at http://squidwiki.kinkie.it/SquidFaq/InterceptionProxy#head-e59e8be8079565bbf ac3f978111ea65b48840ef9 Kinkie